Pinpoint Test B : One Turn Signal Lamp Is Inoperative Or Always On: Notes
WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.
Refer to TURN SIGNAL/STOP/HAZARD LAMPS for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Exterior Lighting - System Operation and Component Description .
REFER to: Exterior Lighting - Overview .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| BCM B123A:11 | Left Front Turn Indicator: Circuit Short To Ground | A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the LH front turn lamp voltage supply circuit. |
| BCM B123A:15 | Left Front Turn Indicator: Circuit Short To Battery Or Open | A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the LH front turn lamp voltage supply circuit. |
| BCM B123B:11 | Right Front Turn Indicator: Circuit Short To Ground | A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the RH front turn lamp voltage supply circuit. |
| BCM B123B:15 | Right Front Turn Indicator: Circuit Short To Battery Or Open | A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the RH front turn lamp voltage supply circuit. |
| BCM B1247:11 | Left Rear Turn Indicator: Circuit Short To Ground | A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the LH rear turn lamp voltage supply circuit. |
| BCM B1247:15 | Left Rear Turn Indicator: Circuit Short To Battery Or Open | A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the LH rear turn lamp voltage supply circuit. |
| BCM B1248:11 | Right Rear Turn Indicator: Circuit Short To Ground | A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the RH rear turn lamp voltage supply circuit. |
| BCM B1248:15 | Right Rear Turn Indicator: Circuit Short To Battery Or Open | A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the RH rear turn lamp voltage supply circuit. |
| BCM U1000:00 | Solid State Driver Protection Active -Driver Disabled: No Sub Type Information | This DTC sets when the BCM has temporarily shut down the output driver. The module has temporarily disabled an output because an excessive current draw exists (such as a short to ground). The BCM cannot enable the output until the cause of the short is corrected, the Diagnostic Trouble Codes (DTCs) have been cleared and a successful self-test is run. For additional information on BCM Field Effect Transistor (FET) protection, REFER to: Module Controlled Functions - System Operation and Component Description . |
| BCM U3000:49 | Control Module: Internal Electronic Failure | This DTC sets when the BCM has permanently shut down the output driver. The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the BCM can withstand. CORRECT the cause of the excessive current draw before installing a new BCM. For additional information on BCM Field Effect Transistor (FET) protection, REFER to: Module Controlled Functions - System Operation and Component Description . |
Possible Sources
- Bulb
- Wiring, terminals or connectors
- BCM